Fluid Control Systems Selected product range

355Dimensions [mm]Port connection A B C D SG Weight[mm] [mm] [mm] [g]NPT 1/2 14 43 47 7 (43 mm coil) 790 (Brass)NPT 3/4 16 49 53 8 (49 mm coil) 875 (St.st)6024Ordering chart for Proportional Valves (other versions on request)Electronics and cable plug not included (see control electronics and accessories)Circuit functionOrifice [mm]Port connectionCv valuewater[GPM]QNn value air[l/min]Max. operatingpressure[psi]Max. coilcurrent[mA]Powerconsumption[W]A Direct-acting 2- 8 NPT 1/2 1.6 1500 5.8 500 15 150 414way proportional 10.2 580 18 150 430valve, closed 10 NPT 1/2 2.3 2150 3.6 500 15 150 415by spring action 5.8 580 18 150 431without current 12 NPT 1/2 3.2 3020 1.5 500 15 150 416A2.9 580 18 150 432PDevices also suitable for technical vacuum. Port connection G 3/4 on request.Note regarding device selectionThe calculation or rating of the orifice of control valves is very important for problemfreefunctioning within the application. The orifice must be selected so that, on theone hand, the desired flow range is reached, and, on the other, that a sufficientproportion of the total pressure loss takes place over the valve when fully opened.Guide value: ∆p Valve > 30% of the total pressure.Make use of the consultation of our Bürkert engineers as early as possiblein the planning phase.Item no.Proportional Valves/Mass Flow Controllers and MetersSubject to modifications